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Battery light goes off and on, voltage meter on dash reads 8 volts

Chevrolet Blazer 2002 blazer 150000 miles
Also just replaced
Alternator
sparky from United States 6 years ago  
SP

Turn over but won't start...

Chevrolet Blazer 2001 Chevy blazer, 2wd, 4.3 180000 miles
So every day when I first start to crank my blazer, (2001 Chevy blazer 2wd, 2door, 4.3) the motor will turn and turn but not start. If I spray starting fluid through breather and try to start it will crank and run until I cut it off. If it sits for a couple hours it will do the same thing, wont start til I use starting fluid. Rarely sometimes it will crank the second time without fluid. I've changed crank sensor, new battery, cap and rotor, it has ngk iridium plugs, new wires, checked fuel pressure which is at 62, new fuel filter, pump does engage when key is turned. I have fuel, spark, compression. I'm out of ideas. Please help
Hokie5 from United States 7 years ago  
HO
5 reports 
Jimbo from United States 7 years ago
Did you check the fuel pressure while it was running, or while it was cranking trying to start? Some pumps when they're going bad will not supply enough pressure to start while cranking, but will while they are running
Krey603 from United States 5 years ago
It sounds like the Mass Airflow Sensor is bad.
Mudslinger from United States a year ago
I have a new fuel pump and spark plugs and wires but he still won't start. Makes a winning sound when trying to start. When he tryes to start it back fires
Krey603 from United States a year ago
I believe timing is way off after all the parts you have replaced. You definitely need to get it on TDC for #1 sparkplug and then make sure the rotor is pointing at the #1 plug wire in the cap. Something similar happened to a Blazer I had just from pulling the distributor rotor out and putting it back in. It turns out that because of the way the gears are cut. When it slides out it turns just a little ahead. When I put it back in I had to start a little before #1 position. Then when it was all the way down it lined up perfectly.
Bones from United States a year ago
My 1998 Blazer won't start or hit a lick but turns over just fine,what can be my problem?
Comment

Odometer and shifter gear indicator went dark

Chevrolet Blazer 2005 4dr,v6 vortex, 160000 miles
Can't see which gear I am in and can't see my odometer,checked fuses didn't find any blown. Other dash lights are working
Jess from United States 7 years ago  
JE
5 reports 
Jess from United States 7 years ago
The only thing to add is that now my fuel and temp. Gauges have joined in and do`not work so its a challenge guessing when to get fuel. I am often filling just to make sure!
Roseylinn from United States 7 years ago
If it's a blazer your losing lights... try not only checking the basic fuses change out the main fuze it'll be located below cigarette lighter... easy fix...
Comment

Wont keep running

Chevrolet Blazer 1999 4dr 4.3  245000 miles
Ok so truck turns over and starts but wont keep going over and over i can hear fuel pump on / off if i giv gas kills instant no gas 1 to four seconds obd says six sensors othrs say fuel pump on way out to far gone or paslock thing in ignition if is sensors or bfor i go get is ther some sorta resset or maybe it means its the relay maybe plz respond and thx you
bubbs from Canada 7 years ago  
BU
2 reports 
stsa from Canada 7 years ago
1 check basis fuel level, oil level, engine coolant condition and level {at the rad) , battery condition and CONNECTIONS this is more important than the average guy realises. , check spark at the PLUGS, check fuel volume and pressures...with a gauge , scan for OBD2 code document codes numbers order of the codes and how many of each code and keep them in order. Check all fuses look for burnt, corroded and loose. This will start u on a proper diagnostic path... as far a security system and paslock very possible i have repaired , replace many of the systems over the last 40 years do the. Basics first... DO NOT believe the OBD2 codes often codes are set due to dead battrerys ,loose ,dirty battery connections boosting, pulling wiring off sensor, wet or corroded fuse box (they r not just a fuse box anymore)...
Comment

Stalling issues

Chevrolet Blazer 1993 K blazer 275365 miles
I have 1993 K Blazer that seems to stall when its hot and humid out... I have put new motor that now has about 60,000 miles on it... I have replaced map,sensor,egr,distributor,plugs,wires,coil,vacuum lines,fuel pump, fuel tank because it had a hole, vents in tank, fuel filter and many other parts and noone can still seem to figure out why i have intermittent stalls... It could be on interstate, at red light, stop sign it just will stall and start back up... It always seems to do it when it is hot and humid or just started because i didnt have this problem over winter or spring... Can someone please help me
Samjr from United States 8 years ago  
SA
13 reports 
fisherman" from United States 7 years ago
Fuel vap canister or electric purge valve have u checked those?
Comment

Speedometer and odometer

Chevrolet Blazer 1999  170000 miles
The speedometer and odometer have both stopped working. The rest of the dashboard is working properly.
Abram from United States 9 years ago  
AB
1 report 
cage from United States 9 years ago
I have the same inconvenient with my Blazer 98 and, apparently, it is the speedometer sensor that is installed in the transmission and is magnetic.
Comment

Electronic stability sensor

Chevrolet Blazer 2020  98000 miles
ESC sensor brings on check engine light and has recently interfered with power steering
Hamath from United States 4 months ago  
HA
1 report 
Amber M from United States 4 months ago
I have the same issue. My car now freaks out when it happens. The ESC service will show up and the it will turn on all the service lights, turn on my parking break while stopped at a light and the light goes off, and it is now draining my battery when I get home. I tried to take it in to get looked at, but because it wasn't doing it and I had to charge my battery back up before I went it reset all the codes or something. My Chevy app says to service 5 different things. I love my Blazer but it is now getting dangerous to drive it and I dont know how to fix it.
1
Comment

Dashboard/smoke comming out of vents

Chevrolet Blazer 2003 ls 160000 miles
Smoke comming from dash vents
arty from United States 6 years ago  
AR
1 reply 
Rocky from United States 4 years ago
Heater core is shot...can’t hold the pressure of hot coolant so it leaks out ur vents is my guess
Comment

4/4 service lite is on

Chevrolet Blazer 2003 Hatchback automatic 4.2 Chevrolet trail Blazer  187538 miles
I have a 2003 Chevrolet Trail Blazer when I was taking off I tried to put my 4 alwheel drive on and my 4/4 service lite come on and I looked down and saw a blinking lite on the alwheel drive and the Lil lite was on still with 2 wheel drive that I look at my dashboard and saw the 4/4 service lite on I had to shut my Blazer off so the lite would go off so dose that mean my 4/4 wheel drive is not working or giving me a warning that something is going out or is out and what would be the problems
Charlie Brown from United States 7 years ago  
CH
3 reports 
Roseylinn from United States 7 years ago
Yes it's indicating powersorse via bulb fuse wires are going out... it flashes letting you know it's sensor is dying
Comment

Running but problems

Chevrolet Blazer 2000 Blazer 153467 miles
Truck starts but while running at idle starter acts like it's trying to engage and ends up burning out the starter
dragonman from United States 7 years ago  
DR
1 report 
Roseylinn from United States 7 years ago
Starter altenator battery when in doubt change them all out... might also consider adding a couple more inches of wire to starter cuz the wires that are there could be exposed fraying rusting etc.. . This interrupts full function of powering the car up and accelerating when commended to.
Comment

Steering Assist error message

Chevrolet Blazer 2020  51000 miles
A message appears on my info screen and my temperature gauge sits on cold the fan continues to blow after car is shut off has repeated this issue 3 times and corrects itself but now my check engine light has come on get a code PO128 or something like that indicating the thermostat may be faulty but I’ve read this doesn’t always fix the issue please help me
Sgrant58 from United States 3 months ago  
SG
1 report 

Instatlled new stereo 2wk ltr lights stped wrkg(dr loc,str,heat,instpa

Chevrolet Blazer 2000 BLAZER V6 4.3 4DR 2WD 153000 miles
I purchased a 2000 chevy blazer 4dr 2wd 4.3 v6. I looked up online for the wiring diagram for the stock stereo. And then went and found the diagram for the new stereo. New stereo due to the old one with bose with cd and tape not working. Out with the old in with the new. When i was done. I still had 3 wires that i could not account for coming from the blazer. I taped them off and continued on. With the amp i grounded it and connected the remote turn on from the deck. And with the +12v constant to the amp i saw an open spot on the fuse box just inside the drivers door. Located at the bottom of… Read complete
QTTHATSME from United States 3 years ago  
QT
1 report 

Speedometer quit working

Chevrolet Blazer 2001 4.3 175000 miles
Speedometer and tachometer quit working
1
David l from United States 4 years ago  
DA
1 report 

Electrical and fuses

Chevrolet Blazer 2001  100371 miles
For months now check imengine light and all brake light come on go off sometime they are on weeks the tomorro had it checked several times they find nothing also windshield wipers just stopped 2001 Chevy 2wd blazer I need to know which fuse is for windshield wipers
Amyl from United States 6 years ago  
AM

Sounds like rod knocking

Chevrolet Blazer 2005 Trailblazer 4.2 LS 130000 miles
When I start the engine it makes a rod knocking noise also when I start engine oil light comes on the goes off
Tina from United States 6 years ago  
TI

Knocking noise when first start engine and oil light come on then go o

Chevrolet Blazer 2005 Trailblazer 4.2 LS 1300000 miles
When I start engine makes a knocking noise like it's a rod and also the oil light comes on when starting then goes off
Tina from United States 6 years ago  
TI

Transmission

Chevrolet Blazer 2004 2 Door, Sunroof, Curved Hatch on rear with Tailgate 195380 miles
It shifts into reverse, but doesn't engage. Also; doesn't shift into overdrive and will not shift down in the OD gear when slowing down. I just replaced the TCC solenoid and changed the filter and also tranny fluid. Still doesn't engage in ? Any clues to what is wrong?
Brownie from United States 6 years ago  
BR
1 report 

Dash coolant sensor problem

Chevrolet Blazer 1997 4.3l 4door 4wd 250000 miles
Replaced thermostat and water pump heat gauge on dash starts at hot and sticks there what could be the cause and solution
Brad1983 from United States 6 years ago  
BR

Speed tach and tranny after radio install

Chevrolet Blazer 1996 4.3 132000 miles
Installed aftermarket stereo in my 1996 blazer. Now the speedometer tach dosent work and tranny dosent shift out of first
PANDORA1160 from United States 6 years ago  
PA

Cabin air flow

Chevrolet Blazer 2005  100000 miles
When I bought vehicle the blower worked... but it sat for a time and now the only time the air flows is when vehicle is in motion. Hot or cold both work but not can... could it be the blower motor or the control modual in the dash
... how do I confirm cause
Karen G from Canada 7 years ago  
KA

Cracked dashboard

Chevrolet Blazer 1998 top dashboard 25000 miles
Dash board cracked on top, needs replacement
doug from United States 7 years ago  
DO

Fuel pump and oil pressure gage

Chevrolet Blazer 1988 Chevy s10 blazer 2.8 4x4 2304521 miles
I bought a new fuel pump and a fuel pump relay, no power to the fuel pump. The oil pressure gage does not work the old fuel pump quit working so I took it out ,and behold the screen was falling apart, the tank was full of rust. Problem no power to the new fuel pump
Logun from United States 7 years ago  
LO
7 reports 

Installed new battery

Chevrolet Blazer 2004 4.3 vortec 166000 miles
Will not idle runs rough check engine light flashes
neva from United States 8 years ago  
NE
16 reports 

Oxygen sensor p0154

Chevrolet Blazer 2001 Chevy blazer vortec 134545 miles
Blazer runs great no. Symptoms at all really. I had. Change the sensor and the service. Light is still on...it has a new one on that side and switch the old one on the opposite side and the light had turnd off but i scanned it and still says the code. Not sure what to do next
Drew from United States 8 years ago  
DR
1 report 

Speedometer failure

Chevrolet Blazer 2001 4.3 litre, 2wd, auto trans 140000 miles
Speedo and odometer have stoped working. All other gauges work
Mark from United States 8 years ago  
MA
4 reports 

Blockage and ABS light

Chevrolet Blazer 1998  15000 miles
When I am about to start my van, it blocks and the ABS light turns on. I need to wait for a few seconds until it can be started. If I do it before waiting, it won't start as it is still blocked. The ABS light won't turn off. What do you recommed me to do? What might be wrong with it?
isaiah from United States 8 years ago  
IS
5 reports 
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